Finding the Fourth Proportional to 3,542,129.20, 5,319,098.70 and 1,945,837.90
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Solution
The fourth proportional to 3,542,129.20, 5,319,098.70 and 1,945,837.90 is: 2,922,000.66
Step by Step Solution
- Step 1: Write the proportion equation
3,542,129.20 : 5,319,098.70 = 1,945,837.90 : x - Step 2: Convert to fraction form
3,542,129.20/5,319,098.70 = 1,945,837.90/x - Step 3: Cross multiply
3,542,129.20x = 5,319,098.70 × 1,945,837.90 - Step 4: Simplify right side
3,542,129.20x = 10,350,103,844,300.73 - Step 5: Solve for x
x = 10,350,103,844,300.73/3,542,129.20 - Step 6: Final answer
x = 2,922,000.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.